It's been years since I have designed a small (3 sprinklers) single interlock pre-action system. I have a vague remembrance of not needing an air supply for a system this small, but I can find that info anywhere. I'm wondering if I'm confusing it with the requirement for supervision on systems over 20 sprinklers? Or, is this where the 7 psi limitation comes in? Atmospheric pressure is something like 14.7 psi so the 7 psi limit is meet?
Dazed and confused in Idaho, Thank you, Bob Knight, CET III 208-318-3057 www.firebyknight.com _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
